Application of Fe and Cu nanoparticles for methyl orange removal from water and water-ethanol mixtures under various experimental conditions

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2022-12-01 DOI:10.1016/j.wri.2022.100189

M. Majadleh , T. Shahwan , R.B. Ahmed , M. Anjass

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引用次数: 1

Abstract

In this study, metallic iron nanoparticles (Fe NPs) and metallic copper nanoparticles (Cu NPs) were prepared, characterized, and used in the removal of methyl orange (MO) dye. The experiments investigated first the UV–Vis spectra of dye molecules in three types of solvents (water, water-ethanol, and water-dimethyl sulfoxide). The removal of MO was then conducted under various experimental conditions to investigate the effects of solvent type, nanoparticles dosage, salinity of the solutions, temperature, and shaking time. The highest extent of MO removal was achieved in water solutions. Under all experimental conditions, Fe NPs showed higher efficiency than Cu NPs in MO removal. Moreover, heterogeneous Fenton process led to smaller MO removal when compared with the direct use of the nanoparticles, for both water and water-ethanol solutions. From a kinetic perspective, the dye removal process was much faster in water than in water-ethanol mixtures, and the data followed pseudo-second order rate equation.

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不同实验条件下Fe和Cu纳米颗粒在水和水-乙醇混合物中去除甲基橙的应用

本研究制备了金属铁纳米粒子(Fe NPs)和金属铜纳米粒子(Cu NPs)，并对其进行了表征，并将其用于甲基橙(MO)染料的去除。实验首先研究了染料分子在三种溶剂(水、水-乙醇和水-二甲基亚砜)中的紫外-可见光谱。然后在不同的实验条件下对MO的去除进行了研究，考察了溶剂类型、纳米颗粒用量、溶液盐度、温度和振荡时间对MO去除的影响。在水溶液中MO的去除率最高。在所有实验条件下，Fe NPs去除MO的效率均高于Cu NPs。此外，与直接使用纳米颗粒相比，非均相Fenton工艺对水和水-乙醇溶液的MO去除率更小。从动力学角度看，在水中脱色比在水-乙醇混合物中脱色快得多，且符合准二级速率方程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry